growing up poor in texas. >> all they need is knowledge and opportunity, and that's the gift i was given. >> reporter: using her gifts to improve opportunities for students and teachers in africa, this week's jefferson award in the bay area goes to irna space gross. >> and after seeing that, if you would like more information on asante africa go online to kpix.com. click the logo at the top of the page and jefferson awards to find the story. >>> and now you know that you might soon be able to use your face as currency? >> another new change in technology. paypal is trying out a system that uses facial recognition and links directly to a customer's account. if the system recognizes the person's face, it withdraws the funds. they are trying to create alternative debit and credit i had cards. they are testing it in britain. >>> coming up, another look at the bart contract. why some politicians would not stop union workers from walking off the job. >>> and the president calls for a review of the nation's spying program. why his plans are drawing reactions in favor and against those reforms.